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/*
* Copyright (c) 1988, Julian Onions <jpo@cs.nott.ac.uk>
* Nottingham University 1987.
*
* This source may be freely distributed, however I would be interested
* in any changes that are made.
*
* This driver takes packets off the IP i/f and hands them up to a
* user process to have it's wicked way with. This driver has it's
* roots in a similar driver written by Phil Cockcroft (formerly) at
* UCL. This driver is based much more on read/write/select mode of
* operation though.
*
* from: $Header: if_tnreg.h,v 1.1.2.1 1992/07/16 22:39:16 friedl Exp
* $Id: if_tun.h,v 1.3 1993/12/13 14:27:01 deraadt Exp $
*/
#ifndef _NET_IF_TUN_H_
#define _NET_IF_TUN_H_
struct tun_softc {
u_short tun_flags; /* misc flags */
#define TUN_OPEN 0x0001
#define TUN_INITED 0x0002
#define TUN_RCOLL 0x0004
#define TUN_IASET 0x0008
#define TUN_DSTADDR 0x0010
#ifdef notdef
#define TUN_READY 0x0020
#else
#define TUN_READY (TUN_IASET|TUN_OPEN|TUN_DSTADDR)
#endif
#define TUN_RWAIT 0x0040
#define TUN_ASYNC 0x0080
#define TUN_NBIO 0x0100
struct ifnet tun_if; /* the interface */
int tun_pgrp; /* the process group - if any */
#if BSD < 199103
struct proc *tun_rsel;
struct proc *tun_wsel;
#else
u_char tun_pad; /* explicit alignment */
struct selinfo tun_sel; /* bsd select info */
#endif
#if NBPFILTER > 0
caddr_t tun_bpf;
#endif
};
/* Maximum packet size */
#define TUNMTU 1500
/* ioctl's for get/set debug */
#ifdef __NetBSD__
#define TUNSDEBUG _IOW('t', 90, int)
#define TUNGDEBUG _IOR('t', 89, int)
#define TUNSIFINFO _IOW('t', 91, struct tuninfo)
#define TUNGIFINFO _IOR('t', 92, struct tuninfo)
#else /* Assume BSDI */
#define TUNSDEBUG _IOW('T', 90, int)
#define TUNGDEBUG _IOR('T', 89, int)
#define TUNSIFINFO _IOW('T', 91, struct tuninfo)
#define TUNGIFINFO _IOR('T', 92, struct tuninfo)
#endif
struct tuninfo {
int tif_baudrate; /* linespeed */
short tif_mtu; /* maximum transmission unit */
u_char tif_type; /* ethernet, tokenring, etc. */
u_char tif_dummy; /* place holder */
};
#endif /* !_NET_IF_TUN_H_ */
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